<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../react18/react.development.js"></script>
    <script src="../react18/react-dom.development.js"></script>
    <script src="../react18/babel.min.js"></script>
</head>

<body>
    <div id="app"></div>
    <script type="text/babel">


        class App extends React.Component{
            state = {
                name : 'aaa',
                age : 18,
                hobby : '吃饭'
            }


            render(){

                const{name,age,hobby} = this.state
                return(
                    <div>
                    输入姓名:
                    <input type="text" value = {name} onChange={this.handleName}/>  
                    <br />
                    <br />
                    输入年纪:
                    <input type="text" value = {age} onChange={this.handleAge}/>
                    <br />  
                    <br />
                    输入爱好: 
                    <input type="text" value = {hobby} onChange={this.handleHobby}/>    
                    <br />  
                    <br />  
                    <button onClick ={this.handle}>提交信息</button>
                    </div>
                )
            }

            handleName =  (e) => {
                console.log(e);
                this.setState({name:e.target.value})
            }
            handleAge =  (e) => {
                this.setState({age:+e.target.value})
            }
            handleHobby =  (e) => {
                this.setState({hobby:e.target.value})
            }

            handle = ()=>{
                const {name,age,hobby} = this.state
                console.log(name,age,hobby);
            }
        }

        const root = ReactDOM.createRoot(document.getElementById('app'));
        root.render(<App />)
  </script>
</body>

</html>